This terrorist act resulted in the death of 12 people, seriously harming scores of others and affecting thousands.

Cult apologists initially defended the 'New Religious Movement,' but trials later revealed Aum Shinrikyo (currently named Aleph) carried out the attack in an attempt to disrupt a planned police raid at the cult's headquarters in relation to another crime committed by the group.

Eventually ten Aum members, including founder Shoko Asahara, were sentenced to hang for a series of crimes committed by the cult, including the murder of a lawyer's family and a deadly sarin attack in summer 1994 in Matsumoto, Nagano Prefecture.

On the eve of the 15th anniversary of the Tokyo subway attack, the widow of a man killed in the attack has made a documentary film in which she interviews other people victimized in the sarin attack.